Lubricating device.



R. WOOD.

LUBRICATING DEVICE.

APPLICATION FILED SEPT.1?. 1913.

1.,1 62,975. Patented Nov. 30, 1915.

7] :1 I inventor: 5 by %;%W we. @42 W, @Azr} UNITED STATES PATENT OFFICE.

ROBERT WOOD, OF BROOKLYN, NEW YORK. LSSIGNOR TO THE NATHAN MANUFAC- TURING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

LUIBR-IGATIN G DEVICE.

Specification of Letters Patent.

Application filed September 17, 1913. Serial No. 790,345.

To all whom it may concern:

Be it known that I, Ronnnr WOOD, asubject of the King of Great Britain and Ireland, residing at 135 East Fourth street, Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Lubricating Devices, of which the following is a specification.

This invention relates to lubricating devices of thetype in which the lubricating material is taken from a convenient reservoir to the parts to be lubricated, and its novelty consists in the construction and adaptation of the parts, as will be more fully hereinafter pointed out. It may briefly be described as a two-feed, doubleacting single-ram lubricator. It is believed to have many advantages over the devices known to the art and to be especially well adapted to insure economical and efficient lubrication where it is needed.

In the drawings, Figure 1 is a transverse central section and partial elevation of a lubricating device embodying the invention; Fig. 2 is a representation in diagram of the parts of a steam engine to which the lubricating device may be attached, and Fig. 3 is an indicator diagram of such an engine showing the points of admission and expansion of the steam.

In the drawings, 10 represents a casing provided with a main chamber having an upper portion 11 and a lower portion 12 and serving as a reservoir" for the lubricating material, preferably a quality of oil suitable for the particular application desired. The upper portion is closed by means of a suitable cover 13 secured to or made integral with the casing and which cover is provided with an aperture adapted to receive a closure device indicated at 14. There is also preferably arranged depending from a ring 15 supported in an annular recess in the cover a sieving or filtering device indicated at 16. An aperture 17 serving as a duct is formed in the wall of the upper portion 11 of the chamber and an aperture 18 serving as a port is formed in the wall of the lower portion 12 of the chamber. Arranged across the casing 10 and secured thereto in any suitable manner is a main cylinder 20 adapted to contain a reciprocating cylindrical ram 21 which is provided with an auxiliary ram 22 adapted to reciprocate partly within the cylinder, 20 and partly within a bore 23 formed in an auxiliary casing 24 secured in any suitable manner to the main casing and which bore constitutes a second ram cylinder. It will be noted that there is no direct communication between the main chamber or reservoir and the main cylinder.

Arranged adjacent to the main chamber is a chamber adapted to contain the mechanism by which the ram 21 is reciprocated. This chamber is within an auxiliary casing formed in part of two walls of the main casing. 10 and in part by an outwardly extending partition 27 and a side wall 28, the latter removably secured in position by any suitable means as the screws indicated at 29. The operating mechanism comprises a cross head 30 secured to the ram 21 and adapted to slide 'along the bottom of the chamber. It is provided with a vertical slot 31 adapted to be engaged bya pin 32 arranged on an arm 33 secured in turn on a shaft 31 rotatably mounted in suitable bearings and to which shaft is rigidly secured a lever having a suitable connection indicated at 36 with any reciprocating part of the engine mechanism. It is obvious that the lever 35 and arm 33 form with the shaft 31 an elbow lever, and it is also obvious that when the lever 35 is moved to the left it will move the pin 32 and ram 21 a full stroke to the left, that when the leveris then moved to the right it will have moved the pin 32 and ram 21 a full stroke tothe right as soon as it attains a vertical position, and when it is moved to the right from such position it will again move the pin 32 and ram 21 a full stroke to the left, but that in this last case the pin 32 will have moved below the horizontal as in the first case it will have moved above the horizontal. In other words, for every reciprocation of the lever it will move the ram two reciprocations. That is, it is a double-acting, single-ram lubricator. It will be noted also that 'there is no communi-. cation between the chamber which contains the operating mechanism and that which contains the oil supply.

In the auxiliary casing 24 there is arranged a vertical duct 40 communicating by a passage 41 with the passage 18. by another passage 42 with the passage 17. and by a third passage 43 with an oil chamber 14 Patented Nov. 30, 1915.

check valve indicated at 45 is located in the lower part of the duct 10 and a springpressed overflow valve indicated at 16 is located in the upper part of the duct 10. A. vertical channel or duct 17 leads fro-m the oil chamber ll downward toward a delivery pipe indicated at 18. A check valve indicated at 19 prevents oil in the channel 47 from returning to the chamber 11 and two check valves indicated at 50 and 51 prevent it from flowing backward along the channel 47. The duct 10 communicates with the interior of the cylinder 20 and the duct 17 with the interior of the bore 23 in the casing 21. A throttle valve 52 is adapted to con trol the flow of oil through the passage 13.

In Fig. 2 a steam engine is shown in diagram. 100 being the casing, 101 the cylinder, 102 the piston, 103 the inlet pipe. 101 the exhaust. 105 the piston rod, 100 the crosshead, 10? the connecting rod, 108 the crank, 109 the shaft and 110 the fly wheel.

The manner of operating the lubricator is as follows: The cap 1-1 being removed, oil is introduced through the sieve 16 into the main chamber within the casing, preferably filling the lower part 12 and a portion of the upper part 11, the ram and operative mechanism being in the positions illustrated in Fig. 1. The engine being started the lever 33 is oscillated through the connection 36. In whatever direction it is moved, the ram 21 will be moved toward the left. This will create a partial vacuum within the cylinder 20 and produce a suction which will draw the oil into the passages 18 and 11 through the check valve 15, into the duct 10 and cylinder 20. As the lever reaches the end of its movement in either direction and then returns to its original position, the ram 21 is moved inwardly and pressing the oil in the cylinder 20 and passage 10 before it forces such oil through the passage 43 into the chamber 41. The described action of first suction to draw the oil from the reservoir and then pressure to force it through the proper channels and passages is repeated atv each full stroke of the ram 21 and each half stroke or oscillation of the lever 35, the check valve 45 preventing at all times any return of the oil from the bottom of the channel 40 to the reservoir 12. But that is not all. the small auxiliary ram 22 moves with the main ram 21 and reciprocates across the channel or duct 41. Consequently, as this ram moves to the left it sucks oil from the reservoir l-l through the valve 10 down into the channel 47 and into the bore 23 in which it is reciprocated and -when it moves to the right it forces such oil down through the channel 47 and valves 50 and 51 into the delivery pipe 18 because it can not pass back into the chamber 44 through the check valve 49. Thus at each oscillation of the lever 3 there is twice delivered at equal time intervals through the delivery pipe 18 a quantity of oil predetermined by the cubic contents of the various channels. If the movement of the oil in the duct 10 should be retarded in any way, it will flow upward and through the overflow valve J-G back into the main chamber.

When the piston 102 is in its central position, as shown in Fig. 3, the connection 36 is so placed that the lever is in its central position, when the piston moves to the right to the end of its stroke the lever 35 will also oscillate to the right and cause the ram 21 to make a vacuum stroke. On the return stroke of the piston 102, after it received its steam, when it reaches the same central position the lever 35 will again be vertical and the ram 21 will be in its original position, but on its return from its extreme left position it will have made a forcing stroke thus injecting oil into the cylinder 101 while the engine was receiving steam, but as the piston 102 passes the central point and moves toward the left, the ram 21 is compelled to make another vacuum stroke, and when the. piston receives its steam at that end of the cylinder and its movement is reversed, the ram makes another forcing stroke until the lever 35 reaches a vertical position when another vacuum stroke is produced as the piston moves to the right from its central position. In other words, referring to the Fig. 3, the indicator diagram, the ram 21 makes a forcing stroke every time steam is admitted and the piston moves from the end of the cylinder 101 toward its center and a vacuum stroke while the steam is expanding. That is, the action of the lubricator is synchronized with the movement of the engine piston and caused to deliver its oil when it is wanted. namely, as the power impulse is imparted to it by the steam, and by arranging the areas of the delivery pipes and channels either by calculation or previous experiment to deliver the proper quantity to lubricate the piston, and no more, there can be no excess of oil forced to the engine and therefore no waste. Referring to the movement of the engine shaft, the act-ion of-the device may be stated as lubricating the cylinder twice for each complete revolution of the shaft. It is also obvious that so long as the reservoir 11- or rather the conduit 17 is full of oil the amount fed to the delivery pipe will be substantially constant irrespective of the extent of the supply in the main reservoir.

The level of the passage 18 being above the bottom of the casing 10, all undesirable sediment in the oil is necessarily brought by gravity well below such level and kept out of the oil being delivered. As there is no communication between the chamber containing the ram-zu'tuating mechanism and the oil reservoir, no particle of metal or the like can get into the reservoir.

What I claim is:

1. The combination with an engine, of a lubricant supply holder having communication with the cylinder of said engine, means for supplying the lubricant to the engine, including a single lubricant propelling pump, and means for operating said pump to eifect a discharge of the lubricant on each cycle of said engine.

2. The combination with an engine, of a lubricant supply holder having communication with the cylinder of said engine, means 'for supplying the lubricant to the engine,

including a lubricant propelling pump, and means operated by the engine for actuating said pump to cause it to deliver a charge of lubricant to the engine on the first half of each cycle of the engine.

3. The combination with an engine, of a pump for supplying lubricant thereto and including an actuating device, and a connection between the engine and pump actuating device for effecting two strokes of the pump on each stroke of the engine.

4. The combination with an engine, of a lubricant supply holder, a pump for delivering lubricant from the holder to the engine, and means operated by the engine and connected to the pump for giving two cycles to the pump on eachcycle of the engine.

' The combination with an engine. of a pump for supplying lubricant thereto, and pump actuating means having an oscillatory member connected to and moving with the engine, said pump being at one end of its stroke when the oscillating member is midway of its stroke, whereby the pump is given two strokes to each stroke of the engine.

6. The combination with an engine, of a pump for supplying lubricant thereto, a swinging actuating arm for the pump, and an oscillatory lever connected to the arm and to the engine, said arm and pump being at one end of their stroke when the lever is midway of its stroke, whereby the pump is given two strokes to each stroke of the engine. a

7. In a lubricating apparatus of the character set forth, the combination with a lubricant reservoir, of a pump therefor comprising a cylinder member and a ram operating therein, an oscillatory operating member having a back and forth movement transverse to the path of the ram and connected to said ram, the ram being substantially at one end of its stroke when the operating member is substantially midway of its stroke, and means for oscillating the operating member.

8. In a lubricating apparatus of the character set forth, the combination with a lubricant reservoir, of a pump therefor, comprising a cylinder member and a ram operating in the cylinder member. a cross head carried by the ram and having a slot disposed transs versely to its path of movement, and an os-.

plete working and return stroke upon each oscillation of the pin from its said central position to one side of the same and return.

9. In a lubricating apparatus of the 'character described, the combination with a lubricant reservoir having side walls, of a chamber separated therefrom and located at one side of the same, and an outlet passage leading from the lower portion of the reservoir, and located on the opposite side of said reservoir to the chamber, a pump comprising a cylinder member extending across the reservoir above the bottom and having an intake in communication with the passage, said cylinder member having an outlet, a ram in the cylinder member, and means in the chamber and connected to the ram for operating the latter.

10. In a lubricating apparatus of the character set forth, the combination with a asing inclosing a lubricant reservoir and a chamber separate therefrom. of another casing associated with the first-mentioned casing and having a cylinder member detachably extending across the reservoir to the chamber, a ram in the cylinder member, said cylinder member and ram constituting a pump, and means in the chamber for operating the ram, said cylinder member having an intake communicating with the reservoir and also having an outlet.

11. In a lubricating apparatus of the character set forth, the combination with a casing inclosing a lubricant reservoir and a :hamber separate therefrom, of another casing located alongside the first casing and having a cylinder member detachably extending across the reservoir to the chamber, said second casing also having a passage communicating with the reservoir and with the cylinder member, said cylinder member also having an outlet, a ram operating in the cylinder member and having a portion in the chamber, said cylinder member and ram constituting a pump. and actuating means for the ram located in said chamber and connected to the portion of the ram therein.

12. In lubricating apparatus of the character set forth. the combination with a lubricant reservoir, of a pair of alined pumps. a conduit for supplying lubricant from the reservoir to one of the pumps, means for delivering the lubricant from said pump to return from said means to the reservoir, a

direct connection between the rams of said i 'ters and of difl'erent active areas, a conduit for supplying lubricant from the reservoir to the pump having the ram of large area, means for delivering. lubricant from said pump to the other pump, including a supplemental reservoir, a return conduit from said means to the main reservoir, and means gonlnected to one of the rams for operating 1-1. In lubricating apparatus of the char-.

acter set forth, the combination with a reservoir having a wall provided with an outlet port and a return port, of an auxiliary casing associated with the reservoir and arranged exteriorly thereof, said casing having a pump cylinder, a conduitleading from the outlet port to the cylinder, a conduit leading from the pump, and an overflow return communicating with the return port, and a ram ope-rating in the cylinder.

15. In lubricating apparatus of the character set forth, the combination with a lubricant reservoir having a side wall provided with a lower outlet port and an upper overflow return port, of a casing located against said wall and having two pump cylinders,

one of which projects through the wall into the reservoir, the other being disposed exteriorly thereof, a supplemental reservoir formed in the upper portion of the casing, a conduit leading from the outlet to one cylinder, and from said cylinder to the supplemental reservoir and the overflow return port, a conduit from the supplemental reservoir to the cylinder, rams operating in the cylinders, and means for actuating the rams.

16. In a lubricating apparatus of the character set forth, the combination with a main reservoir, of a supplemental reservoir, a passage leading from the main reservoir to the supplemental reservoir, a pump including a cylinder member and a ram, said pump having communication with the passage, an overflow return from the passage between the pump and supplemental reservoir, said overflow return communicating with the main reservoir, a second pump comprising a cylinder member and a ram attached to the piston of the first pump, a passage leading from the supplemental reservoir to the second pump, and a passage leading from the said second pump to the part to be lubricated.

In testimony whereof I aliix my signature in presence of two witnesses.

ROBERT VOOD. \Vitnesses HELEN V. Frrzm'rmoK, MARY H. LEWIS. 

